FLIR LEPTON® Engineering Datasheet 
 
The information contained herein does not contain technology as defined by the EAR, 15 CFR 772, is publicly available, 
and therefore, not subject to EAR.  NSR (6/14/2018). 
Information on this page is subject to change without notice. 
Lepton Engineering Datasheet, Document Number: 500-0659-00-09 Rev: 203
 
10 
User-selectable 14-bit, 8-bit (AGC applied), or 24-bit RGB 
(AGC and colorization applied) 
Thermal radiometric 
accuracy (Lepton 2.5 and 3.5) 
-  High gain mode: Greater of ±5 °C or 5% (typical) 
-  Low gain mode: Greater of ±10 °C or 10% (typical) 
25-MHz nominal, CMOS IO Voltage Levels in accordance with 
Electrical Specifications, page 73. 
CCI (I2C-like), CMOS IO Voltage Levels in accordance with 
Electrical Specifications, page 73. 
Input supply voltage 
(nominal) 
2.8 V, 1.2 V, 2.5 V to 3.1 V IO 
Nominally 150 mW at room temperature (operating), 5 mW 
(standby). For 2.0, 2.5, 3.0 and 3.5 650mW during shutter 
event. 
Dimensions [mm] (w × l × h) 
Lepton 1.5 (without shutter): 8.47 × 9.67 × 5.62 
Lepton 1.6 (without shutter): 8.47 × 9.69 × 8.84 
Lepton 2.0 (with shutter): 10.50 x 11.70 x 6.37 
Lepton 2.5, 3.0, 3.5 (with shutter): 11.50 x 12.70 x 6.835 
Dimensions with socket 
105028-101 [mm] (w × l × h) 
Lepton 1.5 (without shutter): 10.78 × 10.60 × 5.92 
Lepton 1.6 (without shutter): 10.78 × 10.60 × 9.15 
Lepton 2.0 (with shutter): 10.78 x 11.70 x 6.68 
Lepton 2.5, 3.0, 3.5 (with shutter): 11.50 x 12.70 x 7.14 
Lepton 1.5, 2.0: 0.68 grams 
Lepton 2.5: 1.02 grams 
Lepton 3.0, 3.5: 0.91 grams 
Camera operating 
temperature range 
Lepton 1.5, 1.6, 2.0, 2.5, 2.0, 3.5: -10 °C to +80 °C 
Lepton 2.0, 3.0: Shutter operation limited to -10 °C to +65 °C 
Non-operating temperature 
range